webMethods Product Suite  | Complete Installation and Upgrade Information for Software AG Products | Installing Software AG Products | Preparing for Database Component Creation | Database Component Descriptions and Installation Requirements | Integration Server or Microservices Runtime Database Components | External RDBMS versus Embedded Database | Using the Embedded Database
 
Using the Embedded Database
Integration Server and Microservices Runtime use Derby, a file-based database, as their embedded database. When you use the embedded database, Integration Server or Microservices Runtime writes IS Internal and Cross Reference data to that database, and writes IS Core Audit Log data to files.
Important: If one database file gets corrupted, the entire database might become unusable. Software AG therefore recommends backing up the Software AG_directory \IntegrationServer\db directory periodically so you will be able to return to the last known good state if necessary.
If you later want to write these types of data to an external RDBMS instead, you will need to create the necessary database components in the RDBMS (see Database Component Descriptions and Installation Requirements) and configure Integration Server or Microservices Runtime to write to them (see Connecting Products to Database Components). You must also complete the steps for switching from the embedded database to an external RDBMS (see webMethods Integration Server Administrator’s Guide).

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